// 各主流浏览器
var _mime = function (option, value) {
                var mimeTypes = navigator.mimeTypes;
                for (var mt in mimeTypes) {
                    if (mimeTypes[mt][option] == value) {
                        return true;
                    }
                }
                return false;
            };
            
            
            function getBrowser() {
                var u = navigator.userAgent;
                var bws = [{
                    name: 'sgssapp',
                    it: /sogousearch/i.test(u)
                }, {
                    name: 'wechat',
                    it: /MicroMessenger/i.test(u)
                }, {
                    name: 'weibo',
                    it: !!u.match(/Weibo/i)
                }, {
                    name: 'uc',
                    it: !!u.match(/UCBrowser/i) || u.indexOf(' UBrowser') > -1
                }, {
                    name: 'sogou',
                    it: u.indexOf('MetaSr') > -1 || u.indexOf('Sogou') > -1
                }, {
                    name: 'xiaomi',
                    it: u.indexOf('MiuiBrowser') > -1
                }, {
                    name: 'baidu',
                    it: u.indexOf('Baidu') > -1 || u.indexOf('BIDUBrowser') > -1
                }, {
                    name: '2345',
                    it: u.indexOf('2345Explorer') > -1
                }, {
                    name: 'edge',
                    it: u.indexOf('Edge') > -1
                }, {
                    name: 'ie11',
                    it: u.indexOf('Trident') > -1 && u.indexOf('rv:11.0') > -1
                }, {
                    name: 'ie',
                    it: u.indexOf('compatible') > -1 && u.indexOf('MSIE') > -1
                }, {
                    name: 'firefox',
                    it: u.indexOf('Firefox') > -1
                }, {
                    name: 'safari',
                    it: u.indexOf('Safari') > -1 && u.indexOf('Chrome') === -1
                }, {
                    name: 'qqbrowser',
                    it: u.indexOf('MQQBrowser') > -1 && u.indexOf(' QQ') === -1
                }, {
                    name: 'qq',
                    it: u.indexOf('QQ') > -1
                }, {
                    name: 'chrome',
                    it: u.indexOf('Chrome') > -1 || u.indexOf('CriOS') > -1
                }, {
                    name: 'opera',
                    it: u.indexOf('Opera') > -1 || u.indexOf('OPR') > -1
                }];
             
                for (var i = 0; i < bws.length; i++) {
                    if (bws[i].it) {
                        if(bws[i].name == 'ie'){
                            var reIE = new RegExp("MSIE (\\d+\\.\\d+);");
                            reIE.test(u);
                            var fIEVersion = parseFloat(RegExp["$1"]);
                            if (fIEVersion == 7) {
                                return "IE7";
                            } else if (fIEVersion == 8) {
                                return "IE8";
                            } else if (fIEVersion == 9) {
                                return "IE9";
                            } else if (fIEVersion == 10) {
                                return "IE10";
                            } else {
                                return "0";
                            }//IE版本过低
                            return "IE";
                        }
                        if(bws[i].name == 'chrome'){
                            if(_mime("type", "application/360softmgrplugin")||_mime("type", "application/mozilla-npqihooquicklogin")){
                                return "360";
                            }
                            if(_mime("type", "application/vnd.chromium.remoting-viewer")){
                                return "360";
                            }
                            if(_mime("type", "application/hwepass2001.installepass2001")||_mime("type", "application/asx")){
                                return "360";
                            }
                        }
                        return bws[i].name;
                    }
                }
             
                return 'other';
            }
 
// 系统区分
function getOS() {
    var u = navigator.userAgent;
    if (!!u.match(/compatible/i) || u.match(/Windows/i)) {
        return 'windows';
    } else if (!!u.match(/Macintosh/i) || u.match(/MacIntel/i)) {
        return 'macOS';
    } else if (!!u.match(/iphone/i) || u.match(/Ipad/i)) {
        return 'ios';
    } else if (!!u.match(/android/i)) {
        return 'android';
    } else {
        return 'other';
    }
}